The new AI assistant moat is psychology: personality beats features, argues sold-for-$200K indie dev

dumay_sacha · x · 2026-10-28

Indie developer Sacha Dumay argues the new moat for AI assistants is psychology—each assistant's 'vibe' is its hardest-to-copy identity. He critiques ChatGPT's instant-answer dopamine loop (less reasoning, more hallucination) and over-engagement (replying even to 'thanks', biasing toward the user).

After selling chatnode.ai for $200K a year after building it, he's now building cashflowy.ai, a finance agent where the personalization layer on top of bookkeeping/reporting is the real differentiator.

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